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	<h1 id="firstHeading" class="firstHeading" lang="en">Multi image techniques</h1>
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		<div id="siteSub" class="noprint">From PanoTools.org Wiki</div>
		
		
		
		
		
		
		<div id="mw-content-text" lang="en" dir="ltr" class="mw-content-ltr"><div class="mw-parser-output"><p>There are several use cases to merge several image into one. This page lists some of them.
</p>
<h2><a name="Moved_camera_variants"><span class="mw-headline">Moved camera variants</span></a></h2>
<p>For these applications the camera is moved and several images are shoot in different directions.
Possible applications are:
</p>
<ul><li>Classic panorama: increase field of view</li>
<li>Gigapixel panorama</li>
<li>Brenizer method: decrease depth of field (DOF), also called Bokeh panorama</li></ul>
<h2><a name="Single_stack_variants"><span class="mw-headline">Single stack variants</span></a></h2>
<p>Here the same scene is shoot with different settings.
The applications covers e.g.
</p>
<ul><li>HDR generation (exposure stack)</li>
<li>Extend dynamic range by exposure fusion (exposure stack)</li>
<li>Extend depth of field (DOF) (focus stack)</li>
<li>Noise reduction
<ul><li>averaging (of several images of the same scene, shoot with same settings)</li>
<li>zero-noise technique</li></ul></li>
<li>Super Resolution: sub pixel offset stacking</li>
<li>Tourist Removal
<ul><li>Automatic calculation with median</li>
<li>Manual with multi masking</li></ul></li>
<li>Visualize movement</li>
<li>Lightning improvement by combining flash/no-flash images</li>
<li>Saturation enhancement by polarization Series</li></ul>
<h2><a name="Video_technique"><span class="mw-headline">Video technique</span></a></h2>
<p>Also a video can be used as input for some techniques, e.g.
</p>
<ul><li>Panorama (increased field of view)</li>
<li>Video (post) stabilization</li>
<li>Noise reduction</li></ul>

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